A pH or acid-base indicator is a compound that ... change can also be used as evidence that a chemical reaction has occurred. Students will explore what happens during neutralization by using a base ...

Chemical equations model the changes that happen in ... Neutralisation is the reaction between an acid and a base. Acids react with metals, bases and carbonates to produce salts.

The electrons surround the nucleus in 3 dimensions but it is easier to show an energy level model ... different acids (hydrochloric acid and nitric acid). The calcium reacts most vigorously with the ...